The world's population has just hit 7 billion people and continues to grow. Population experts are concerned about the rise in consumption that will accompany the increase in people. One California home builder, ZETA Communities, designs and builds small, highly energy-efficient homes.
U.S. Border Patrol vehicles drive from a checkpoint in December 2010, as teams of border officers comb the Arizona desert about 10 miles north of Mexico in search for a suspect in the fatal shooting of U.S. Border Patrol agent Brian Terry in the rugged terrain in Rio Rico, Ariz.
Quintana Roo Dunne takes in the ocean view with her parents, John Gregory Dunne and Joan Didion in Malibu in 1976. Quintana Roo fell ill in 2003, and her father had a fatal heart attack several days later. Blue Nights is Didion's elegy for her daughter who died in 2005 at age 39.
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Santa Marta is one of the many slums that dot the hillsides of Rio de Janeiro, Brazil. Rio, host of the World Cup in 2014 and the Olympics in 2016, is now trying to remake these slums, or favelas, long wracked by poverty and violence.